<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
</head>

<body>
    <div id="app">
        <ul>
            <template v-for="value, key of studentInfo">
                <li>key: {{key}}</li>
                <li>value: {{value}}</li>
            </template>
        </ul>
    </div>
    <script>
        Vue.config.productionTip = false;
        
        const vm = new Vue({
            el: "#app",
            data() {
                return {
                    studentInfo: {
                        name: 'zhangsan',
                        age: 18,
                        sex: '男'
                    }
                }
            }
        })
</script>
</body>

</html>